# Chem 4

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1. Ideal Gas Law
PV=nRT
2. Universal Gas Constants
3 Different R

• R= (.082)L*ATM
• molK

• R=(8.314)J
• molK

• R= (62.44)L*Torr
• molK
3. Charles Law
V as it relates to T
4. Boyle's Law
V as it relates to P
V as it relates to n
6. Before
• PbVb= PaVa
• ___________
• Tb Ta
7. Convert oC to K
273.15 +oC
8. Gas Density Calculations- Find Molar Mass of Gas
• P=dRT
• M

• M=dRT
• P
9. Density
• Mass
• Volume

• g
• L
10. To find Molecular formula
• Find empircal formula
• Find the molar mass of gas
• Find Molar mass of empirical formula
• Divide the amu (g/mol) by the molar mass
• Multiply by the subscripts.

• (Empirical Formula)x=Molecular Mass of elements or gas
• Solve for x and mulitply x by the subscripts of Empirical Formula
11. Dalton's Law of Partial Pressures
Total # of moles of gas mixture= Sum of moles of individual components

ntotal=na+nb+nc......
 Author: chiroclown ID: 26311 Card Set: Chem 4 Updated: 2010-07-11 04:14:05 Tags: Gas Laws Folders: Description: Gas Laws Show Answers: